"code": "BatchInvalidFileTypeError",
	"target": "Unknown",
	"details": [
			"code": "BatchInvalidFileTypeError",
			"number": 202,
			"message": "Compressed archive file contained wrong file type",
			"description": "The BatchFile '-1-' had a compressed file of type '-0-'.  Compressed files can only contain CSV, XLS, XLSX, XML, POSTED, and UNPOSTED file types.",
			"faultCode": "Client",
			"helpLink": "",
			"severity": "Error"

This indicates that you attempted to upload a batch file with an unsupported file type. AvaTax supports batch files that contain CSV (comma-delimited) files, Microsoft Excel files (in either XLS or XLSX formats), XML files, or POSTED/UNPOSTED files.

If you upload a compressed file, AvaTax will decompress that file and verify that the enclosed file type is correct. Please check the file extension on your uploaded file to verify that it matches one of the known file types.